Platen printiig machine



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Patented Feb. 13, 1894.

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P. MEISBL& H. L.'CHAPIN. WEB PNNIBGTING PLAIBN PRINTING MACHINE.

No. 514,563. Patented Feb. 13, 1894.

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` I'. MEISEL & H. L. GHAPIN.

WBB PBRFBGTING PLATBN PRINTING MACHINE.

No. 514,563. l Patented Feb. 13, 1894. fbg/[mz wre 5 E e a H4 N I D.. AH G L H Ow. L E s I E M L WBB PBRPBGTING PLATBN PRINTING MACHINE. No.514,563.

Patented Feb. 13, 1894.

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(No Model.) 7 sheets-sheet 5.

E'. MEISEIS SDH. L. CHAPIN.

WBB PBRFBGTING PLATEN PRINTING MAGHINE.

Patented Feb.r 13, 1894,

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WBB PBRFEGTING PLATBN PRINTlNG MACHINE.

"Patented Feb. v1s, 1894.

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` P. MBISBL 8v H. L. GHAPIN.: WBB PERFBGTING'PLATBN PRINTING MACHINE.

Patented Feb. v13, 1894# nomu. umowPnrNu coMPANv w Na an u c t5 2 2 ofFig.

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FRANCIS MEISEL, OF BOSTON, AND HERBERT L. OHAPIN, OF CHELSEA,MASSACHUSETTS, ASSIGNORS TO SAID MEISEL.

WEB-PERFECTING PLATEN PRlNTlNGlVlACHl NE.

.SPECIFICATIQN forming part of Letters Patent No. 514,563, datedFebruary 13, 1894. Application filed December 9,1892. Serial No.454.604. (No model.)

i .TO @ZZ whom it may concern.-

Be it known that we, FRANCIS Marsan, of Boston, and HERBERT L. OHAPIN,of Chelsea, in the county of Suffolk, State 'of Massa- 5 chusetts,citizens of the United States, have Io panying drawings, making part ofthis speci cation, in which- Figure l is an elevation of one side of ourimproved printing machine. Fig. 2 is a sectional end elevation of thesame on the line l. Fig. 3 is a sectional elevation on the line 3 3 ofFig. et. Fig. et is a sectional plan view on the line 4 4 of Fig. 3.Fig. 5 is a side elevation of the forni-roller track and its operatingmechanism. Fig. 6 is a plan of zo the same. Fig. 7 is an elevation ofone side of the platen, showing the tympan-frame and mechanism foroperating the same. Fig. S is a plan view of the same. Fig. 9 is anenlarged view of the parts shown in Fig. 7. Fig. l is same. Fig. l1 isan' enlarged sectional detail showing one of the lips or flanges of theplaten upon which the tympan frame slides. Fig. l2 is a detail viewofthe top feed-roll mechanism. Fig. 13 is an end Fig. 111: isa plan viewof the machine. Figs. l and 16 are elevations of two ot the cams whichoperate the toggles. Figs. 17',18,and 19 are details of the mechanism bymeans of which the form-rollers are 3 5 operated to ink the type-forms.

Our invention relates to that class of platen printingmachines where thepaper is taken from a continuous web or roll, and in which two type-bedsand two platens are employed;

4o and our invention consists in certain novel combinations of parts anddetails ot construction as hereinafter fully set forth and specificallypointed ont in the claims.

ln thesaid drawings, A represents the framework of the machine, on thebase of which between the side pieces is mounted a stationary plate B,forming a typebed, and between the upper ends ci the saidside pieces issecured a stationary plate C, forming a platen and arranged directlyover and in line with the stationary type-bed B.

D is' a vertically reciprocating plate, forming a type-bed whichco-operates with the upper stationary platen C, and E is a verticallyreciprocating plate forming a platen, which co-operates with the lowerstationary type-bed B, said platens and type-beds being all arrangedvertically in line with each other. On these type-beds B, D, thetype-forms are imposed in the usual manner.

The reciprocating type-bed D and reciprocating platen E are provided attheir opposite ends with arms 19 guided in vertical grooves in theframework A, and are connected together in such manner as to movesimultaneously in opposite directions by means of two double toggles G,G, Figs. l and 3, the construction and operation of which will now bedescribed. Each of said double togglesis composed ota centraloscillating bar or member h, provided atits ends with central journalsc, adapted to oscillate in bearings in the framework A, the upper andlower edges of the members h being jointed respectively at d, e, to theupper and lower members g, h, of the double togglcs, the former g, beingjointed at i to the reciprocating type-bed D, and the latter h, at k tothe reciprocating platen E, whereby as the two members b, b, are rockedon their centers c, the upper and lower toggles will be operated asdesired. The two upper toggle joints d, d, are connested by a horizontal bar Zand the two lower toggle joints e, e, are similarly connectedby a horizontal bar m, said bars serving to transmit the power from onetoggle t0 the other. The central members h, h, of the toggles are eachprovided with two inwardly projecting arms p, p, one near each end, asshown in Figs. 25 and 4, said arms carrying cam rolls q which are actedupon by cams fr, r, s, e, on the main or central shaft l, whereby assaid shaft is rotated, the double toggles are closed or straightenedout, as shown in Fig. 3, and the movable type-bed and movable platen,which are nearly of the same weight, moved simultaneously in oppositedirections to cause them respectively to co-operate with the staf IEOtionary platen and stationary type-bed to produce the impressions, asingle revolution of the central shaft I producing two impressions, oneon each side of the sheet, as required in a perfecting press.

By using the upper stationary plate C as a type-bed, and the plate Dimmediately thereunder as a platen, it will be obvious that the machinecan be adapted for color printing, and two colors can, by thisarrangement, be printed in succession on one side of the sheet,

Outside the framework A the shaft I is provided with two cams t, u,which act upon cam rolls w, d', at the outer ends of crank arms b', c',secured to the journals c of the central toggle members b, and serve torock said members b in a direction opposite to that in which they aremoved by the cams fr, s, thus openingthe toggles as shown dotted in Fig.1, and -returning the parts to their normal positions. The several camsabove described are so formed and timed as to permit the reciprocatingtypebed and reciprocating platen to remain at rest during such time asis required for the forms to be inked and the paper to be drawn throughthe machine for the succeeding impressions by mechanism to behereinafter described. By thus combining a vertically reciprocatingplaten co-operating with a stationary typebed and a verticallyreciprocating type-bed co-operating with a stationary platen with togglemechanism arranged directly between and connected with saidreciprocating platen and reciprocating type-bed and adapted to move thesame simultaneously in opposite directions as above described, the powerexerted by the toggles is enabled to do double the work, as we areenabled to utilize the force hitherto exerted in a downward directionagainst the stationary base or bed to which the lower toggle member hasbeen jointed, and which has hitherto been wasted or renderedunavailable; that is, the downward pressure exerted by the lower memberof a toggle against a stationary bed or base is, by our construction andarrangement of parts now made available to do the work of printing byconnecting the lower platen therewith, and as the weight of thereciprocating platen is about equal to that of the reciprocatingtype-bed, it will be obvious that they will balance each other in theiralternate ascent and descent, the weight of the one in its descentcounterbalancing and assisting to raise the other in its ascent, wherebythe power required to operate the machine is reduced to a minimum, and agreat saving thereby effected.

To the main or central shaft I is secured a large gear K which is drivenby a pinion o shown dotted in Fig. 1, on the driving shaft L, the lattercarrying as usual a iy or balance wheel and fast and loose pulleys, notshown.

We will now describe the in king apparatus by means of which the formsare inked after each impression is taken. Each of the typeforms is inkedby a series of form-rollers CZ',

Figs. 1, 5, and 6, the journals or. shafts of I which run in bearings incarriages, X, shown in Figs. 17, 18, and 19, said carriages beingadapted to run on horizontal bars M, M, which form tracks or guidewaystherefor. The bars M are supported by rocker arms e pivoted thereto andsecured to rocker shaftsf,g. The shaft f of the upper form roller trackis provided with acrank arm 15, to which is pivoted a connecting rod\16carrying a cam roll h', which is acted upon by a cam wheelNon the mainshaft l, the lower end of the rod 16 having formed thereon a forkedguide i', which embraces and slides upon the shaft I, by which it issupported. The shaft f is also provided with a crank arm 7c which isconnected by a rod Z with a crank arm m', Fig. l, on the shaft f of thelower track M, whereby as the connecting rod 16 is actuated by the camwheel N, both of the tracks M, M, will be simultaneously raised andlowered at the proper times. lowered, the form rollers will be at theproper level to take ink from the distributing rolls or ink cylinders P`at opposite ends of the tracks, and when these tracks are raise'd totheir highest position, the form rollers will be at the proper level toink the type forms. By this construction we are enabled to place the inkcylinders P below the level of the tracks M, thereby avoiding the wearwhich would otherwise be occasioned by the form rollers riding up overthe ink cylindersif the tracks M were not capable of being raised andlowered; it being obvious that if the' said tracks were stationary, itwould be necessary to have the ink cylinders project above the level ofthe tracks in order that the form rollers might be brought into contacttherewith.' The form rollers are moved forward and back over thetype-forms to ink the same in the following manner. To each of the formroller carriages X is secured a pair of horizontal rack-bars shown inFigs. 17 and 18, which slide in suitable grooves in the framework andare actuated by gears 76 secured to a horizontal shaft 77 to which isalso secured at one end a pinion 78. These two pinions 78 of the upperand lower shafts 77 are both engaged by a vertical rack-bar 79 moving insuitable guides and having pivoted to it at 8O a connecting rod 8l, theopposite end of which is pivoted to a lever 82 fulcrumed at When thetracks M are IOO IZO

83 to the framework and carrying a roll 84 which runs in a cam-groove 85in a cam-wheel 86 fast on a shaft 87 which carries at one end abevel-gear 88, shown in Fig. 18, with which meshes a smaller bevel-gear89 on a shaft 90 carrying at its opposite end a bevel-gear 91 which isdriven by a bevel-gear 92 on the main shaft I, the gears being soproportioned that two revolutions of the shaft I are required to producea single revolution of the cam-shaft 87. The form rollers d are thusmoved forward and back over the type-forms to ink the same at eachcomplete revolution of the cam-wheel 86, the cam-groove 85 -rod 22,thence` horizontally between of the roll 26 of'which is properly shapedto produce thel necessary dwell at the terminationy of the traverseof'the form-rollers in either direction. The shafts of the form rollersare forced downward to keep said rollers in contact with the type-formsby means of spiral springs 95, as shown in Fig, 19.

The roll of paper Q. is mounted on a hori-` zontal shaft, the journalsof which rest in suitable bearings in the framework, as showny inFig. 1. The web of paperR from this roll Q passes over guide-rods 20,21, and under a the re` ciprocating platen E and the stationary typebedB, thence under a guide-rod 23 and over a guide and take up roller 24and horizon` tallyibetween the upper stationary platen C and thereciprocating type-bed D, after which it passes under a horizontallyadjustable guide-rod 25 to the feed or drawing rolls 26, 27, 28, betweenwhich it is tightly gripped and by which it -is fed or drawn forwardlintermittiugly after the impressions have beentaken; the length ofpaper drawn forward at each operation of the feed rollsl correspondingto that of'a single detached sheet after it is printed. The shaft of theflower or main feed roll 2G is provided with suitable well knownmechanism not shown, whereby it isy rotated intermittingly at the ropertimes as required. The upper feed rolls 27, 28,bear upon the margins ofthe paper as usual, these rolls being moved solely by the frictionalcontact of the lower feed roll 2b with the paper between said roll 26and the rolls 27, 2S. The shafts 29, 30, of the rolls 27, 28, aremounted-in curved arms n pro- `jecting from a horizontal shaft p', theshafts 30 of the rolls 2S being supported in fixed bearings at theonterends of the arms n', and the shafts 29 being supported in boxes 31,Fig.12, adapted to slide within slots in the arms n', eachbox havingbehind it a spiral spring 32, which acts to force the roll 27 constantlytoward the lower roll 26. YTo one end of the shaft p is secured an arm q,to the lower end of'4 which is pivoted a rod r having a screw thread atits outer end,over which is fitted a threaded sleeve s', provided at oneend ywith a hand wheel 38, and at its opposite end with a conical pointwhich enters a correspondingly shaped recess in a bearing block34,whereby'by turning the screw `sleeve s', the rolls 27, 28, may be madeto bear with more or less force upon the ypaper passing over the feedroll 26, the springs 32 behind the rolls 27 causing the latter to bearupon the periphery 'with approximately the same force as the rolls 28,and by thus arranging a series of pressure rolls to bear at differentpoints around the circumference of the main feed roll, instead of in asingle line only, the hold or frictional contact of the rolls upon thepaper is materially increased, and the positive feed of the web therebyinsured, as .all liability of slip is avoided. As the web R is stretchedtightly under the surface of the lower or reciprocating platen E whenthe latter descends to produce the impression, it will be evident thatit would become slack on the ascent or return movement of said platen,

hence it becomes necessary to employ a takeup device, which I will nowdescribe. The journals of the guide-roll 24 are mounted in bearings inblocks t made adjustable upon horizontal bars S, Figs. 1 and 14,`one oneach side of the machine; said bars being arranged to slide horizontallyin suitable guideways on the frameA. Each bar S is provided on its upperside with rack teeth tu', with which engages a toothed sector c2,secured to a horizontal rockshaft 18 having its bearings in theframework, and provided outside the framework with a slotted arm b2, towhich is adjustably secured a rod c2, the lower end of which is jointedto an arm d2 pivoted to the framework, said rod c2 at its junction withthe arm d2 carrying a cam roll e2, which fits within and is acted uponby a cam groove T on the inner face of the main gear K, and thus throughthe connections described, as the shaft 18 and toothed sectors u? arerocked in the proper direction, the horizontal bars S will be forcedoutward in the direction of the arrow, Fig. 1, thus causing the roller24 to take up the slack of the web Ras the platen E rises, and keep ittightly stretched in its proper position against the under surface ofthe said platen, the movement of the bars S being properly timed tocorrespond with its upward and downward movement. When that portion ofthe web R between the guide rod 23 and the guide and take-up roller 24assumes different angles, as occurs when said web is to be cut up intosheets of different lengths, the take-up roller 24 is adjusted on thebars S to produce the proper register of the two impressions on oppositesides of the sheet, and at thesame time the pivot of the rod c2 is adjusted in the slot of the arm b2 to vary the amount of movement of thebars S to cause the roll 24 to properly take up the slack of the web; itbeing necessary to increase the movement of the bars S in proportion asthe roll 24 is moved on the said bars S toward the center of themachine.

XVe will now d escribe the tympan-frame and its operative mechanism bywhich it is raised and lowered to bring the tympan-sheet tightly upagainst the surface `of the platen, and low ered to enable said sheet tobe easily drawn out from under the blanket.

Each platen has a tympan-frame W, Figs. 7, 8, 9, 10, and 11,which isprovided with vlugs 2, g2, having inwardly projecting pins 35, 36, whichare adapted to fit or hook over and slide upon the lips or flanges h2 ateach end of the platen as seen in Fig. 1l, said flanges thus formingguides or tracks which'support the ty1npan-frame WV, and upon which itis slid in and out as occasion may require. The tympan-sheet i2 issecured as usual to the cross bar 52 at the inner end of the tympanframeand has its opposite end fastened to IOO TIO

and to one end of this shaft Z2 is secured a n bell-crank m2 and to theopposite end an arm n2, the horizontal arm 50 of the bell crank m2andthe arm n2 being each cut away at the outer end on the upper side asseen at 37,

l. forming a shoulder, shown dotted; said shoulders forming stops,against which ythe pins 36 are brought into contact when the tympanframeis pushedin' as shown dotted in Fig. 9, in which position the pins 36rest upon the cutaway ends of the bell craulfr` lever m2 and arm n2, andas the lugs g2 are of greater length than the lugs f2, the tympan-framewill incline downward from front to rear when it,

is fully pushed under the platen, and consequently the bar 52 of thetympan-frame will not come into contact therewith as it is pushed in. Tothe upper arm of the bell crank lever mZis pivoted a rod p2 provided atits opposite end with a handle q2 and retaining notches r2,

which engage a lng or projection s2 on theyplaten to hold the bell crankin place when adjusted, and after the tympan-frame has been pushed inunder the platen, the said bell-crank is rocked by pushingin the rod p2,which causes the armsO, rnikon which the pins 36 rest, to raise up thetympan-frame into the position shown in full lines in Fig. 9, and thusbring the tympan-sheet tightly up against the under surface of theplaten into its proper working position.

When it is desired to draw out the tympanframe, the rod p2 is pulledforward by means of its handle q2, thereby lowering the inner end of thetympan-frame and causing the tympan-sheet to drop away from the platen,when it can be easily drawn out, as required.

What we claim as our invention, and desire to secure by Letters Patent,is-

V1. In an intermittentweb-printing machine, the combination, with tworeciprocating and two stationary plates or members arranged in pairs,one plate or member of each pair forming a platen and the other atype-bed, of toggle mechanism arranged between said reciprocating platesor members directly under the one and over the other, whereby thepressure is applied directly under and over the impression su rfaces,said mechanism being arranged to separate or force the saidreciprocating plates or members away from each other to produce the twoimpressions, substantially as set forth.

2. A web-printing machine having alower stationary type-bed and an upperstationary platen arranged face to face, said type-bed being at thebottom and said platen at the top of the machine, in combination with alower vertically reciprocating platen cti-operating with the lowerstationary type-bed and an upywhereby per verticallyy reciprocatingtype-bed co-'oper-v ating with the upper stationary platen, whereby thetypes on both type-beds are held face upward; said type-beds andplatensbeing arranged in line one above the other, and the reciprocatin gplaten and reciprocating type-bed being connected together by togglemechanism arranged between said reciprocating platen and reciprocatingtype-bed directly under the latter and over the former, whereby thepressure is applied directlyunder and over the impression surfaces, saidmechanism being arranged to separate or force the said reciprocatingplaten and reciprocatingtype-bed away from each other to produce the twoimpressions, substantially as set forth.

3. In an intermittent web-printing machine, the lcombination, with a'vertically reciprocatingplaten c'o-operating with a stationary typebedand avertically reciprocating type-bed co-operating withk a stationaryplaten, substantially as described, of connecting toggleymechanismarranged between said reciproeating platen and reciprocating type-beddirectly under the latter and over the former,

the pressure is applied directly nnder and over the impression surfaces,said mechanism being arranged to separate orforce the said reciprocatingplaten and reciprocating type-bed away from each other to produce thetwo impressions, substantially as yset forth.

4. In a web printing-machine, the combination, with a verticallyreciprocating platen, co-operating with a stationarytype-bed, and avertically reciprocating type-bed co-operating with a stationary platen,substantially as described, of the toggles G, G, arranged between saidreciprocating platen and reciprocating type-bed and serving to connectthe same together lwhereby they are caused to move simultaneously inopposite directions, and balance each other, said toggles having centraloscillating members b provided with arms 1o, h', c', the central shaft Iprovided with cams r, s, t, u, adapted to act upon the arms p, b', c',of the members b, b, to alternately open and close the toggles,substantially as described.

5. In a web printing-machine, the combination, with the reciprocatingplaten E, and a stationary type-bed B, of the toggles G, G, arrangedbetween and connecting said platen and type-bed and having their centralmembers b provided with arms p, b', c', the central shaft I providedwith cams fr, s, t, u, adapted to act upon the said arms p, b', c', toalternately open and close said toggles, and the horizontal rods Z, m,connecting the upper and lower joints of one toggle with those of theopposite toggle, substantially as and for the purpose set forth.

6. In an intermittent web-printing machine, the combination, with thetype-form, the form rollers d', the ink or distributing cylinders andmeans for traversing the form-roller-carriage to bring the form-rollersover the typeform and then over the distributing cylinders,

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of the vertically movable formoller track or guideway and means forraising and lowering said track to bring,` the form-rollersalternatelyin-to contact with the type-form and ink cylinders,substantially as described.

7 In a web printin g-machine, the combination, with the ferm rollertracks M, of the rocker shafts f g', provided with arms e pivoted to thetracks M, and suitable connecting mechanism operated by a cam for oscillatin g the rocker-shafts, whereby the tracks IVI are raised 'andlowered, substantially as and for the purpose set forth.

8. In aweb printing-machine, the combination, with the (3o-operatingtype-beds and plat` ens, of the take-up device for the web consisting ofthe horizontal sliding bars S carrying the web supporting roll 24., andmeans for reciprocatingsaid sliding bars whereby the slack of the web istaken up at the proper time, substantially as set forth.

9. In aweb printing-machine, the combination,withthe cooperatingtype-beds and plat ens, ofthe horizontal sliding bars S provided withrack-teeth w and carrying the web supporting roll 24, the rock shaft 18with its toothed sectors o? and slotted arm h2, the rod c?, arm d2, andthe actuating cam T, all op- @rating substantially as set forth.

l0. In a web printing-machine, the combination, with the feed roll 26,of the shaft p provided with arms n. carrying rolls 27, 28, the arm Q',rod 0', provided with the screw sleeve f and the bearing block 34, alloperating substantially as and for the purpose described'. n

1l. In a web printing-machine, the combination, with the lower feed roll26, of the rolls `its bell crank m2 and arm n2,

28 mounted in fixed bearings at the ends of the arms n of the shaft pthe rolls 27 mounted in yielding bearings in said arms n', the springs32, the arm q secured to the shaftp, the rod fr having the adjustingscrew s', and the bearing block 34, whereby the pressure of the rolls27, 28, on the paper can be regulated, substantially as set forth.

l2. In a web printing-machine, the combination, with the slidingtympan-frame and the platen, of arms adapted to engage the saidtympan-frame when pushed in to raise and lower the same, and means foroperating the said arms, substantially as set forth.

13. In a web printing-machine, the combination, with the platen havinglips or flanges h2, of the tympan-frame `W provided with lugs 2, g2,having inwardly projecting pins 35, 36, adapted to fit or hook over andslide upon the lips or flanges h2, of the platen, the lug g2 beinglonger than the lug f2, whereby the tympan-frame is inclined downwardfrom front to rear when pushed in, the rock-shaft Z2 with adapted to fitunder the pins 36 of the tympan-frame, and the rod p2 pivoted to saidbell-crank and provided with a locking or retaining device, whereby thesaid bell-crank and arm are actuated to raise and lower thetympan-frame, and hold it in position, substantially as set forth.

Witness our hands this 5th day of December, A. D. 1892.

FRANCIS MEISEL. HERBERT L. CIIAPIN.

In presence of- P. E. TESGHEMACHER, HENRY R. EDGECOMB.

